Sisters Should Not Allow Their Nails to Grow Long: It is Imitation of the Unbelievers and Goes Against the Fitrah.

Cutting the nails is from the fitrah (Bukhari and Muslim). So whoever lets them grow long has opposed the fitrah. The time limit set in the Shariah is “no longer than 40 days” (Ahmad, Muslim, Nasā’ī).

To allow them to grow as long as the image shows is from the imitation of the unbelieving women — so our sisters should not seek to imitate them. Furthermore, it is unhygienic and impractical in the life of a pious Muslim woman.